This gene encodes the delta subunit of the translocon-associated protein complex which is involved in translocating proteins across the endoplasmic reticulum membrane. The encoded protein is located in the Xq28 region and is arranged in a compact head-to-head manner with the isocitrate dehydrogenase 3 (NAD+) gamma gene and both genes are driven by a CpG-embedded bidirectional promoter. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Mar 2011]
Function:
Signal sequence receptor delta is assumed to be involved in protein secretion. It is located in the Xq28 region, arranged in a compact head-to-head manner with the IDH3G gene. These two genes are driven by a bidirectional promoter located between them, and encode proteins involved in unrelated biochemical pathways located in different compartments of the cell. The nontranscribed intergenic region represents only 133 bp and is embedded in a CpG island. The CpG island functions as a bidirectional promoter to initiate the transcription of both functionally unrelated genes with distinct expression patterns. Signal sequence receptor delta consists of six exons and is approximately 70 kb telomeric to the ALD gene. Although alternative splicing of exon 5 has not been detected in human Signal sequence receptor delta, transcript variants missing the region homologous to human exon 5 have been detected in both Xenopus laevis and Mus musculus.
Subcellular Location:
Endoplasmic reticulum
SWISS:
P51571
Gene ID:
6748
Database links:
Entrez Gene: 6748 Human
Omim: 300090 Human
SwissProt: P51571 Human
Unigene: 409223 Human
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